I began to work feverishly on the radio beacons . 我开始拼命地研究无线电信标。
The beacon beckoned to the pilot, the beam pointed to the target . 定向信标指挥驾驶员,射束则指向目标。
For some time the german bombers had navigated largely by radio beacons . 有一个时期,德国轰炸机主要是靠无线电定向信标来导航的。
The beacon will have a limited beamwidth and if the body-to-beam angle exceeds this a serious loss of signal will result . 这个信标器的波束宽度有限,如果弹体波束角超过了它,信号就会发生严重的衰减。
Activate your homing beacon when you ' re ready 准备好了就发射你的归航信标
Performance requirements and test methods for marker beacon 指点信标性能要求和测试方法
Performance requirements and test methods for ils localizer 航向信标性能要求和测试方法
Electrical equipment for aircraft . anti - collision beacons 飞机电气设备.防撞信标发射机
Satellite emergency position indication radio beacon station 卫星紧急指位无线电信标电台
Preformance requirements for airborne marker beacon receiver 机载指点信标接收机性能要求